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Nov 23, 2009, 2:07 PM
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[issue7385] MemoryView_FromObject crashes if PyBuffer_GetBuffer fails
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New submission from Pauli Virtanen <pav [at] iki>:
In Objects/memoryobject.c:PyMemoryView_FromObject there's a
_PyObject_GC_UNTRACK unpaired with corresponding _PyObject_GC_TRACK,
which seems to cause a segmentation fault. This can be triggered by
calling PyMemoryView_FromObject on an object whose bf_getbuffer returns
an error.
PyMemoryView_FromObject(PyObject *base) {
...
if (PyObject_GetBuffer(base, &(mview->view), PyBUF_FULL_RO) < 0) {
Py_DECREF(mview);
return NULL;
}
...
_PyObject_GC_TRACK(mview);
}
...
static void memory_dealloc(PyMemoryViewObject *self) {
_PyObject_GC_UNTRACK(self);
....
}
----------
components: Interpreter Core
messages: 95660
nosy: pv
severity: normal
status: open
title: MemoryView_FromObject crashes if PyBuffer_GetBuffer fails
versions: Python 3.1
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<http://bugs.python.org/issue7385>
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